Sporn, P. (1969). Technology, engineering and economics. MIT.
Chicago Edition CitationSporn, Philip. Technology, Engineering and Economics. Massachussets: MIT, 1969.
ציטוט MLASporn, Philip. Technology, Engineering and Economics. MIT, 1969.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.